| Cross |  Trading system toolbox | 
| SYNTAX | Cross( ARRAY1, ARRAY2 ) | 
| RETURNS | ARRAY | 
| FUNCTION | Gives a "1" or true on the day that ARRAY1 crosses 
      above ARRAY2. Otherwise the result is "0". To find out when ARRAY1 crosses below ARRAY2, use the formula cross(ARRAY2, ARRAY1) | 
| EXAMPLE | cross( close, ema(close,9) ) | 
| SEE ALSO | 
The Cross function is used in the following formulas in AFL on-line library:
See updated/extended version on-line.